Getting Exception SIGKILL when relaunching app

iphone exception sigkill
Mikayil Abdullayev picture Mikayil Abdullayev · Jul 15, 2011 · Viewed 7.4k times · Source

I build and run a project in iPhone simulator. I send it to background by pressing the home button. Then I double press the home button to find my app in the background and tap it. It becomes active and the app continues to run. Here I got no problem no matter how many times I repeat this. Then I kill the process by tapping the little red minus sign on the app's icon. But if I again tap the app icon to relaunch it I get SIGKILL error and app crashes. What could be the reason for this? Could it be caused by my XCode preferences?

Answer

Scott Forbes picture Scott Forbes · Jul 15, 2011

This isn't really a crash: It's just XCode having a delayed reaction to your tapping the little red minus sign. When you terminate your app this way, the operating system sends a SIGKILL signal to your process – but XCode's debugger doesn't "see" the SIGKILL until after you relaunch the app.

You can "recover" from this "crash" by hitting the Continue button in the debugger, incidentally.

Related questions

Exception Types in iOS crash logs

I've seen a few different types of crash logs since I begin learning iOS development. I know that: Exception Type: EXC_BAD_ACCESS (SIGSEGV) mean we are accessing a released object. but don't know about: Exception Type: EXC_BAD_ACCESS (…

Read More
How can I develop for iPhone using a Windows development machine?

Is there any way to tinker with the iPhone SDK on a Windows machine? Are there plans for an iPhone SDK version for Windows? The only other way I can think of doing this is to run a Mac VM …

Read More
Apple Mach-O Linker Error when compiling for device

I've just upgraded to xcode 4.0 and I can no longer deploy to iPhone, I get a Apple Mach-O Linker Error, it still works for the simulator though. Ld /Users/yveswheeler/Library/Developer/Xcode/DerivedData/iParcel-fkeqjcjcbbhjwhdssjptkdxzzzxh/Build/Intermediates/iParcel.build/Debug-iphoneos/…

Read More